Home / 128,884.59-193,249.22-57,794.36

Finding the Fourth Proportional to 128,884.59, 193,249.22 and 57,794.36

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Solution

The fourth proportional to 128,884.59, 193,249.22 and 57,794.36 is: 86,656.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,884.59 : 193,249.22 = 57,794.36 : x
  2. Step 2: Convert to fraction form
    128,884.59/193,249.22 = 57,794.36/x
  3. Step 3: Cross multiply
    128,884.59x = 193,249.22 × 57,794.36
  4. Step 4: Simplify right side
    128,884.59x = 11,168,713,735.18
  5. Step 5: Solve for x
    x = 11,168,713,735.18/128,884.59
  6. Step 6: Final answer
    x = 86,656.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.